1.
A.A. Agrachev and Yu.L. Sachkov, An Intrinsic Approach to the Control of Rolling Bodies, Proceedings of the 38-th IEEE Conference on Decision and Control, vol. 1, Phoenix, Arizona, USA, December 7-10, 1999, 431-435.

A.A. Agrachev and Yu.L. Sachkov, An Intrinsic Approach to the Control of Rolling Bodies, Proceedings of the 38-th IEEE Conference on Decision and Control, vol. 1, Phoenix, Arizona, USA, December 7-10, 1999, 431-435.